Improvement in printers  quoins



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DANIEL inlonnrrv, or PONTAUDEMER,`I1RANCE, ASSIGNORQTO FARRELL DORRITY,0F NEWYORK CITY, N. Y.v

.I vLetters Patent No. 93,603, dated August 10, 1869.

IMPROVEMENT IN PRINTERS QA'U'OINS.

The Schedule referred in` these Lettera Patent and making part'of thesame.

To all whom 'it may concern.

Be it known that I, DANIEL DoRnI'rY, of Pont Audemer, in the Empire ofFrance, have invented a new and improved Printers Qnoinf and I do herebydeclare that the following is a full, clear, and .exact description ofthe same, reference being had to the accompanying drawings, which formpart of this speciiication, and in which- 4 Figure l represents a planview of a printers quoin, constructed according to lny invention;

Figure 2 represents a longitudinal section of the same, taken in theline :r-a'; and

Figure 3, a transverse section, taken in the line b'imilar letters ofreference indicate corresponding parts in the several figures.

This invention has for its object. the more rapid,

convenient, accurate, and secure locking up of printers forms 'than ispracticable with contrivances heretoforepsed for that purpose; and

It consists of' a printers quoin constructed with laterally-adjustabletace-plates, having inwardly-ex-r tending fixed screws, which t within,and are operated by hollow female-threaded cylindrical screwgears,

,having their axes arranged parallel, and being driven by a screw-wheel,arranged with itsI axis at right angles thereto, whereby the lateraladjustment of the 4said face-plates is effected by the turning of saidvdriving screw-wheel.,I

Referring to the accompanying drawings v A is a `metal frame, ofrectangular and preferably of oblong formation, and provided upon itslonger sides with 'laterally-adjnstable face-plates,-B B. Projectinginwardly and rectangularly from each of' said face-plates B B', arefixed screws, b b and b b.` VSaid screws, b b and b 11', are made to fitrespectively within a corresponding number of hollow female-threadedscrew-gears, UO.

Said screw-gears are supported in bearings in the frame A, and are madeto gear withl each other in pairs, so that by rotation of the same,longitudinal motion is imparted to the said screws?) b and bf b inopposite directions, and thereby producing lateral motion of the saidface-plates B B', also in opposite directions. made to gear with and isoperated by a dri-ving screwwheel, D, arranged in the central portion ofthe frame A, and with its axis at right angles to the axes of the 'saidscrew-gears C G, lso that by the turning of` the saiddrivingscrew-wheel, rotary motion is imparted to the said screw-gears C C, andC C', and thereby effecting the lateral adjustment of the. face-platesoutwardly or inwardly, according to the direction in which saiddriving-wheel is turned.

In some cases the quoin may be constructed with but'two screws, insteadof four, or opposite pairs, as

stantially as speciiied. p

DANIEL DORRITY.

Witnesses BERNARD TSANGK, 3 I le Lacroix. Y. ALPHONSE Avrnn, 24Boulez-ard C'anch'o'seV The screw-gear of each pair is

